SEaB Energy

What SEaB Energy does

SEaB Energy (legal name SEaB Power Ltd, t/a SEaB Energy) is a UK-incorporated climate technology company that designs, manufactures, and commercialises modular, containerised anaerobic digestion (AD) systems for the on-site conversion of organic waste into renewable energy (biogas, electricity, heat) and biofertiliser. The company, headquartered in London at 86-90 Paul Street with additional offices in New York and an engineering/operations hub in Southampton, sells two core product lines: Flexibuster™, a patented, multi-award-winning AD unit for food waste, sludge, and slurry streams; and Muckbuster®, an AD unit specialised for agricultural slurry and animal manures. Both products are built inside standard ISO shipping containers, integrate feedstock reception, pasteurisation, digestion, biogas handling, and a combined heat and power (CHP) engine, and are designed for plug-and-play, AI-monitored, fully automated, remotely diagnosed operation at modular scales from 200 kg to 20 metric tonnes of waste per day per site. The company is referenced as having a US subsidiary, holds ISO 9001, ISO 14001, and ISO 28001 certifications, and is women-owned. Cumulative reported impact across deployed Flexibuster units includes 2,650 tonnes of CO2 offset, 9,000 tons of waste converted, and 1.9M+ m³ of biogas produced.

The company monetises through a multi-stream model: one-time hardware sales of Flexibuster and Muckbuster systems, 10-year Power Purchase Agreement (PPA) revenue-share structures for larger opportunities, lease finance and asset-backed funding for OPEX-style customer adoption, regional manufacturing licensing royalties (e.g., W8ST Pty Ltd for Australia and New Zealand), long-term service, commissioning, remote monitoring, and spare-parts revenue, and project-specific carbon credit and offset advisory. Go-to-market is hybrid — direct enterprise sales to commercial, industrial, and municipal customers, combined with a global network of agents (e.g., Biowaste SA in Portugal, Sambren Limited in Canada), resellers, authorised commissioning partners, and national licence holders — supported by active event presence at industry and climate forums (UN COP28, Waste Management Europe, World Biogas Summit, ADBA Industry Awards, European Urban Resilience Forum). Customer segments include food and beverage manufacturers, retailers and supermarkets (Continente/Sonae Group), agricultural and livestock operations, hospitals, airports and universities, waste transfer operators, municipalities, and project developers/EPCs/infrastructure investors, with named reference deployments in Portugal (Continente hypermarket in Gaia), Italy (Dolina/DECISIVE project), and the MENA region (Majid Al Futtaim shopping mall portfolio).

SEaB is privately held and venture-backed, with a 13% strategic stake held by Enagás Emprende (the corporate venture arm of Spanish gas grid operator Enagás) since 2019 and a 2022 capital increase led by Axon Partners Group through the Next Utility Ventures fund linked to Colombian multi-Latin utility Empresas Públicas de Medellín (EPM). The company is led by co-founder and CEO Sandra Sassow, with Nick Sassow as CTO, Allan Barton as Chairman, and Sean Brophy as VP of Sales. Reported founding year is 2018, with commercial operations traceable to a 2016 deployment; the entity is the corporate successor to Solent Energy & Biofuels Ltd.

Name

SEaB Energy

Legal name

SEaB Power Ltd

Website

https://seabenergy.com

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

1–10 employees

Short description

SEaB Energy (SEaB Power Ltd) designs containerised modular anaerobic digestion systems — Flexibuster™ and Muckbuster® — for on-site conversion of food waste, sludge, and slurry into renewable energy and biofertiliser, serving commercial, agricultural, and municipal customers across 13+ countries.

Ownership category

akta.pro rank

Product category

Waste-to-Energy Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413)

SIC

Refuse Systems (4953)

akta.pro primary industry

Anaerobic Digestion (AD) & Biogas/RNG Production (Organics Feedstocks) (BPALAEAC)

akta.pro secondary industries

Digestate & Compost Quality Testing/Certification (Lab, QA/QC) (BPALAEAK), Digestate Processing, Nutrient Recovery & Fertilizer Products (Struvite, Ammonia, Compost) (EUAAAEAL)

Keywords

• Containerised anaerobic digestion
• On-site waste-to-energy systems
• Organic waste treatment equipment
• Biogas combined heat power
• Modular biogas plants

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Personnel, Marketing or Sales, Operations

Revenue model

1. Hardware sales of Flexibuster™ and Muckbuster® systems: One-time sale of containerised anaerobic digestion units. Customers purchase the physical system outright, generating upfront capital revenue. Pricing is site-specific and quote-based.
2. Manufacturing licensing royalties: Licensed manufacturing partners (e.g., W8ST Pty Ltd for Australia and New Zealand) pay royalties to manufacture SEaB systems within agreed territories to SEaB's technical specifications, quality standards, and design control. Enables capital-efficient international expansion.
3. Power Purchase Agreements (PPA): Ten-year revenue-share models targeted at larger-volume opportunities. Includes committed feedstock access, site access, and energy offtake agreements for ten years.
4. Lease finance and asset-backed funding: Collaboration with lease finance providers and asset-backed funders to enable off-balance-sheet or OPEX-style customer adoption. Individual systems or portfolios financed against defined operating assumptions.
5. Long-term service, commissioning, and remote monitoring: Ongoing recurring revenue from commissioning, operator training, preventive maintenance programmes, remote monitoring and diagnostics, and local service partner support backed by central engineering team.
6. Sale of by-products (fertiliser, heat, electricity): On-site generated fertiliser and excess heat/electricity can be sold or used, creating additional revenue streams for customers and (under PPA / licence models) for SEaB.
7. Spare parts and lifecycle support: Recurring revenue from spares, replacements, and lifecycle support for installed Flexibuster and Muckbuster units across multi-region deployments.
8. Carbon credit and carbon offset advisory: Project-specific advisory and support for carbon credit / offset certification pathways, including quantification of emissions reductions from avoided transport and landfill.

Pricing tiers

Go-to-market motion5 records

Distribution channels6 records

Marketing channels9 records

Core offering

SEaB Energy designs, manufactures and sells patented, containerised micro anaerobic digestion systems built inside standard ISO shipping containers. Its two core product variants — Flexibuster™ (for food waste, sludge and source-separated organics) and Muckbuster® (for slurry, manure and similar agricultural waste) — convert on-site organic waste into biogas that fuels a combined heat and power (CHP) engine, producing electricity, heat, recoverable water and biofertiliser for commercial, industrial, agricultural and municipal customers.

Product overview

SEaB Energy offers a single, unified modular platform of containerised anaerobic digestion (AD) systems, sold as two application-specific variants that share the same factory-built, plug-and-play, remotely monitored architecture. The Flexibuster targets food waste, sludge, and slurry streams typical of food & beverage, hospitality, and municipal customers, while the Muckbuster targets slurry and animal manures from agricultural sites such as dairy and livestock farms. Both variants integrate biogas-to-energy components (including CHP engines) for on-site combined heat and power generation, and both are positioned for rapid deployment with CE/UL-compliant components. The company is a women-owned SME operating under ISO 9001, ISO 14001, and ISO 28001 standards, with deployment activity across the US, EU, UK, Australia, and LATAM.

Differentiator

Problem solved

Functional benefit

Brands

• Flexibuster™: Containerised, modular anaerobic digestion unit designed to convert food waste, sludge and a wide range of source-separated organic waste streams into renewable energy (biogas, electricity, heat), recoverable water and biofertiliser on-site; deployed at hospitals, food manufacturing sites, airports, universities, waste transfer sites, retailers and similar commercial customers.
• Muckbuster®

Products and services

• Flexibuster™ Containerised, factory-built anaerobic digestion unit that processes a wide range of organic food waste and sludge streams on-site. Patented process with built-in pasteurisation extracts energy as biogas, which fuels a CHP engine to provide electricity and heat, while producing biofertiliser. Plug-and-play, fully automated and remotely monitored; designed for hospitals, food manufacturing, airports, universities, waste transfer sites, retailers and similar commercial customers at scales from 200 kg to 20 tonnes per day.
• Muckbuster® Containerised anaerobic digestion unit designed to treat slurry, manure, DAF sludge and similar liquid agricultural waste streams at dairies, chicken farms, pig farms and other agricultural sites. Delivered in standard shipping containers, generates energy within approximately two weeks of delivery, is fully automated and remotely monitored, and can include an optional pre-processing mouth unit for non-liquid waste streams.
• Manufacturing Licence Programme (National/Regional Licence Holders) Licensed manufacturing and distribution programme in which regional/national partners (e.g., W8ST Pty Ltd for Australia and New Zealand) manufacture, distribute and install Flexibuster and Muckbuster systems locally under licence, paying royalties to SEaB Energy and retaining SEaB's design control. Targets enterprise customers requiring regionally compliant supply.
• Power Purchase Agreement (PPA) — 10-year revenue share Managed service / outcome-based commercial structure in which SEaB (or an SPV with SEaB) finances, operates and maintains an on-site anaerobic digestion installation for a customer, sharing revenue over a ten-year term from energy sales, by-product sales and avoided waste disposal costs. Includes committed feedstock access, site access, and energy offtake agreements.
• Long-term Service, Commissioning, and Remote Monitoring Recurring post-installation service contract for Flexibuster and Muckbuster systems, including commissioning, operator training, preventive maintenance programmes, remote monitoring and diagnostics, and local service partner support backed by SEaB's central engineering team. Generates ongoing service and spare-parts revenue across the installed base.

Quantifiable outcome

• 2,650 tonnes of CO₂ offset across deployed Flexibuster units
• +6 more outcomes

Named customers2 records

Segments8 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature6 records

Partnerships

Eleven partnerships are on record, tiered core, flagship and minor.

• KPMG (Founded by Her program)coreStrategic or Co-development Partner · 6 March 2025SEaB Energy joined the KPMG Founded by Her program in March 2025 — an initiative supporting female entrepreneurs. The programme provides access to KPMG's network, business expertise, strategic mentorship, and financial/regulatory guidance to help SEaB scale its impact in the renewable energy sector.
• Grow London GlobalcoreGTM or Marketing Partner · 24 February 2025SEaB Energy joined the Grow London Global Cohort 6 Catalyst program in February 2025 — an initiative supporting ambitious London-based businesses in scaling internationally. Over twelve months, the programme will provide expert guidance, market insights, networking, and funding/investment guidance to help SEaB expand into new markets.
• W8ST Pty Ltd (Australia and New Zealand)flagshipOEM/ Whitelabel/ Licensing Partner · 1 January 2025SEaB Energy's licensed manufacturing and delivery partner for Australia and New Zealand, led by CEO Steve Jackson. W8ST combines SEaB's global engineering and IP with local manufacturing capability to deliver reliable, compliant systems and shared long-term value in the ANZ market.
• Microsoft (Growth X Accelerator)coreGTM or Marketing Partner · 30 November 2023SEaB Energy was selected as one of two startups from the Microsoft Growth X Accelerator (supported by the Abu Dhabi Investment Office) to be showcased at the COP28 startup village in the UAE. The partnership provided invaluable resources, mentorship, and global visibility for the Flexibuster solution.
• Abu Dhabi Investment Office (ADIO)minorGTM or Marketing Partner · 30 November 2023Supported the Microsoft Growth X Accelerator programme that SEaB Energy participated in; instrumental in enabling SEaB's showcase at the COP28 startup village in the UAE.
• Majid Al FuttaimflagshipStrategic or Co-development Partner · 9 October 2023SEaB Energy was awarded a place on the Majid Al Futtaim Launchpad Accelerator 2023 (Climate Tech category), enabling entry into the MENA marketplace. SEaB will integrate the Flexibuster solution across Majid Al Futtaim's portfolio of shopping malls and engage with its facilities management and sustainability teams. The accelerator is operated in conjunction with Xsight Future Solutions.
• Continente (Sonae Group)flagshipChannel Partner/ Reseller/ Distributor · 9 June 2016Strategic partnership agreement under which SEaB Energy's Flexibuster was installed at Continente's Gaia hypermarket (south of Porto), making it the first anaerobic digestion system installed at a supermarket site in Portugal. Continente is part of Sonae Group, Portugal's largest retailer, with strong sustainability and resource recovery commitments.
• Biowaste SAcoreChannel Partner/ Reseller/ Distributor · 9 June 2016SEaB Energy's Portuguese agent through which the strategic partnership agreement with Continente (Sonae Group) was conducted. Biowaste SA acted as the local commercial and delivery channel that brought the Flexibuster installation to a Portuguese supermarket site.
• Sambren Limited (Canada)coreChannel Partner/ Reseller/ DistributorSEaB Energy's agent in Canada, led by CEO Brook Harvie. Sambren supports Canadian customers in adopting SEaB's containerised on-site food waste and energy-from-waste solutions.
• Google (Startups for Sustainable Development)minorStrategic or Co-development PartnerSEaB Energy is a member of Google Startups for Sustainable Development, as indicated on the UN SDG 13 graphic on the company's homepage.
• Anaerobic Digestion & Bioresources Association (ADBA)minorOthersSEaB Energy is an active member of the UK ADBA industry association and is shortlisted/finalist at the ADBA Industry Awards. ADBA hosted the World Biogas Summit and Expo 2022, which SEaB attended.

Scale indicators11 records

Recent moves8 records

Expansion highlights8 records

Direct peers

• PlanET Biogas: German manufacturer of modular/biogas plant technology for food waste, manure and agricultural residues; comparable modular AD architecture and overlapping customer base in food producers and farms.
• Biolectric: Belgium-based supplier of small-scale, containerised anaerobic digestion units primarily for dairy and livestock farms — directly comparable to SEaB's Muckbuster® agricultural offering in product format and target customer.
• HoSt: Dutch-headquartered designer and builder of (containerised and modular) anaerobic digestion systems for food waste, manure and industrial organics — the closest large-scale analogue to SEaB's Flexibuster and Muckbuster product line.
• Cambrian Innovation: US developer of on-site anaerobic wastewater treatment and biogas-to-energy solutions for food and beverage manufacturers; competes with SEaB for industrial on-site food-waste-to-energy customers in North America.
• BTS Biogas: Italian/European AD technology provider delivering containerised and skid-mounted biogas plants for agricultural and industrial organic waste — overlapping modular AD product approach with SEaB.
• Zorg Biogas: Italian manufacturer of containerised, plug-and-play anaerobic digestion plants for food waste, slurry and agricultural residues — closest direct competitor on modular containerised AD architecture.

Emerging players

• ClearFleau: UK-based supplier of modular on-site AD and waste-to-energy systems for the food and beverage industry — directly competes with SEaB's Flexibuster™ use case in food processing sites.

Broad incumbents

• Anaergia: Large multi-national waste-to-energy company (IPO'd) covering anaerobic digestion, biogas upgrading, and organics recycling at utility scale — broader incumbent that competes on the same end-market (food/organic waste to energy) but at much larger project sizes.
• Hitachi Zosen Inova (HZI): Global engineering, procurement and construction contractor building large-scale anaerobic digestion and biogas plants for municipal and industrial customers — broad incumbent addressing the same value chain at centralised scale.
• Brightmark Energy: US-based waste-to-energy company with anaerobic digestion and biogas operations across agriculture, food waste and plastics — broader incumbent addressing overlapping end-markets but focused on larger, centralised project deployments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/SeabEnergy
• Facebookfacebook.com/seabenergy
• LinkedInlinkedin.com/company/seab-energy-ltd

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds4 records

Investors5 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SEaB Energy